This high-quality Martyr brand Anode, with a manufacturer part number of CMX04M, is perfect for boat owners looking for reliable protection against corrosion. The 1.125\" D (1 1/8) Magnesium Barrel Collar Shaft Anode comes with an Allen Screw for easy installation.

Made in China, this Boat Anode is specifically designed for use on Shaft & Propeller Anodes. Its Other Part Number is 3507288714, making it easy to identify and purchase. This product is an essential component for anyone with a Sterndrive Motor.

Zinc, free, magnesium freshwater, only anode